Machine for cutting weight-pockets in window-frames, &amp;c.



I. H. & C. I). WEEKS. MACHINE FOR CUTTING WEIGHT POGKETS IN WINDOWFRAMES, &o.

APPLICATION FILED DB0.24, 1910.

1,083,473. Patented Jan. 6, 1914.

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P. H. & G. D. WEEKS. MACHINE FON CUTTING WEIGHT POGKBTS IN WINDOWFRAMES, Nw.

APPLICATION FILED DBC. 24, 1910.

Patented J an. 6, 1914.

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F. H. & C. D. WEEKS.

MACHINE FOR CUTTING WEIGHT POCKETS IN WINDOW FRAMES, &o. APPLICATIONFILED DBO. 24, 1910.

1,083,473. Patented Jan.6,1914.

W 4 SHEETS-SHEET 3.

P. H. & 0. D. WEEKS. MACHINE POR CUTTING WEIGHT POGKETS IN WINDOWFRAMES, w.

APPLICATION FILED DEO. 24, 1910.

Patentedfan. 6, 1914.

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WITNESSES:

n BY @Mw @mi gf-6M' UNITED STATES PATENT OFFICE.

FREDERICK I-I. WEEKS AND CHARLES D. WEEKS, OF AKRON, OHIO; SAID CHARLESD. WEEKS ASSIGNOR TO SAID FREDERICK H. WEEKS.

MACHINE FOR CUTTING WEIGHT-POCKETS IN WINDOW-FRAMES, &C.

Application filed December 24, 1910.

To all whom t may conce/m Be it known that we, FREDERICK H. VVEEKs andCHARLES D. WEEKS, of Akron, in the county of Summit, and in the State ofOhio, have invented a certain new and useful Improvement in Machines forCutting VVeight-Pockets in Window-Frames, &c., and do hereby declarethat the following is a full, clear, and exact description thereof.

The object of our invention is the production of a machine of simpleconstruction by which the operations of cutting the weight pockets andrabbeting or dadoing the stiles of window frames to receive the sillsmay be conveniently and expeditiously and therefore, inexpensivelyperformed, and to this end and others, of perhaps less importance thatwill appear hereinafter, our invention consists in the machine havingthe construction substantially as hereinafter specified and claimed.

Referring to the accompanying drawings-Figure 1 is a perspective view ofa machine embodying our invention; Fig. 2 is a top plan view; Fig. 3 isan end elevation; Fig. 4 is a longitudinal section there.- of; Fig. 5 isa longitudinal section of the saw mandrel; and Fig. 6 is a detail viewin perspective of one of the dado cutters.

The machine we illustrate as an embodiment of our invention isconstructed and organized so that it will cut the parallel longitudinalslits for the sides of a sash weight pocket, and then make thecross-cuts at the ends to complete the pocket, and dado or rabbet thestile for t-he reception of the ends of the sill, and perform these lasttwo operations simultaneously on two stiles. It will be apparent thatt-he simultaneous operations conduce to expedition in the performance ofthe work, mean accuracy in the performance of the work, and theperformance of the various operations mentioned by one machine meanssaving of cost of machinery and space in the shop, together with reducedcost of labor of production,

Proceeding now with a particular description of the machine illustrated,it has a suitable frame whose principal parts are two side members 10having bearings for main shaft 11, provided with fast and loose pulleys12 and 13. On the main shaft 11 is a worm 14 meshing with a worm wheel15 on shaft 16 extending longitudinally of the Specification of LettersPatent.

Patented Jan. 6, 1914.

serial No. 599,236.

machine at right angles to the main shaft 11. Near one end, thelongitudinally extending shaft 16 has a drum 17 from which a cord orchain 18 runs to the lower transverse member of a verticallyreciprocating yoke 19, and by the winding of the cord or chain on saiddrum 17 the said reciprocating yoke 19 is lifted at which time said drum17 is clutched or connected to said shaft 16,

and, on the disconnection of said drum 17 from said shaft 16, saidreciprocating yoke 19 descends by gravity, supplemented by a spring orweight if need be, and retarded in descent by a dashpot 91, composed ofan air or liquid chamber provided with suitable valve and piston. Theclutch connecting said drum 17 and said shaft 16 consists of a pin 161on said shaft 16 that engages an internal shoulder 171 on said drurn17and by the longitudinal movement of said shaft 16, the engagement anddisengagement of said pin 161 and said shoulder 171 are effected. Tomove said shaft 16 longitudinally to disengage said pin 161 and saidshoulder 171 and at the same time disconnect said worm wheel 15 fromsaid worm 14, we provide a pair of collars 162 on said shaft 16 engagedby a cam 163 on a lever 164 pivotally mounted on a shaft 34 hereinafterreferred to, the lever 164 having a handle 165 to impart longitudinalmovement to said shaft 16 in both directions. The yoke 19 has parallelvertical side members in the form of heavy rods which pass throughguides 2() in a frame 21 extending between and bolted to the ends oft-he frame sides 10. At its upper end, said yoke 19 has bearings for ahorizontal shaft or mandrel 22, to which are secured a pair of circularsaws 23 by means of which the longitudinal slits in the st-iles aremade. Said saws may be adjustable toward and from each other on saidmandrel 22 to vary the width of the pocket to be cut in the stiles, andif desired one of the saws may be removable so that the remaining onemay be used for sizing or other purposes.

For revolving the saw mandrel, it is provided with a band pulley 24which is secured to said mandrel 22 by providing a threaded portion 240on the mandrel on which is screwed a nut 241 that is seated in a socketin the side of the said pulley 24, the thread being in a direction whichby` the revolution of said pulley 24 to revolve said mandrel 22, causesa tendency of said pulley 24 to press said saws 23 against collars fixedon said mandrel 22 and thus the pulley and saws are securely mounted onthe mandrel 22 and yet the' removal of said saws 23, when necessary, iseasily accomplished by a simple unscrewinfr operation.

From the band pulley 24 an endess band 25 runs to a pulley 26 on a shortshaft j ournaled in the outer end of an arm or frame 27 that is hungfrom said main shaft 11 and on the same shaft with said pulley 26 islasmaller pulley 260 over which an endless band runs to a band wheel 28 onsaid main shaft 11, an idler pulley 270 being mounted on said swingingframeor arm 27 to take care of slack in the band that runs to saidpulley or band wheel 28 on said main shaft 11. A rod 190 having ayielding or spring sect-ion 191 connects the swinging arm 27 and theyoke 19. Y

For supporting a stile for a slitting operation, a table 29 in the formof an oblong plate is pivotally mounted by means of a horizontal bolt290 on a horizontal extension or bracket 291 of 'said yoke 19, saidtable 29 being normally and yieldingly held in a position above saidslitting saws 23 by springs 292. The table 29 is provided with twoslots, one for each slitting saw through which said saws 23 pass whensaid table 29 with the stile to be slit thereon, is swung downward. lProjecting outwardly from the outer end of said table 29 is a rod or bar294 (which may be a piece of pipe.) to which is secured an upwardlyextending block 295 from one side of which a rod 296 (which likewise maybe a piece of pipe) projects parallel with said rod 294 and said tabletop 29. Said block 295 forms a gage to liX the position of the stilelengthwise by the contact of the stile with said block 295 so that theslits will be made in the stile the right distance from the end thereof.To the top of the table 29 is screwed an adj ustable gage 297 to tixsaid stile in proper position upon the table 29 with its end portionlying beneath said rod 296. If the opposite end of the stile be presseddownward, the stile, supported by the table, will be carriedpdo-wnwardon to the saws 23 and the two longitudinal slits made in the stile. Assoon as the slitting is finished, upon releasing the stile, said table29 will rise automatically from said slitting saws 23.

Besides carrying the slitt-ing saws 23, the mandrel 22 carries a dadocutter, preferably one at each end of the mandrel, so that the operationof forming dadoe's or rabbets in the stiles for the sills may beperformed, the provision of two dado cutters enabling the simultaneouscutting of rabbets or d adoes in two stiles at the same time, duringwhich operation the stiles are suitably clamped and supported, ashereinafter more fully described. The dado cutter, as we prefer toconstruct it, consists of a cylindrical head 290a from which projects,parallel with the mandrel aXis, two similar arcshaped blades which ontheir curved edges have cutting teeth 291a and at one end, which is theforward end in the revolution of the dado cutter, each flange has anobliquely arranged chisel edge which by a longitudinal slit 292acontiguous to the head 290a is made to stand or project outwardly beyondthe plane of the periphery of said head so that for a portion of itslength the cutting blade Y thus formed by the flange is spirally curved.

Since the dadoes or rabbets are cut at a slight incline to suit theinclination of the sill in the stile, the yoke 19 is inclined slightlyfrom the vertical so that the dado cutters will move in a path inclinedslightly from Lthe vertical, and thepitch may be adjusted the yoke beingpivoted on a horizont-al shaft 197 and adjusting screws 192 beingprovided. j Y

At its top, each side frame 10 has near each end a horizontallyadjustable plate 30, with a series of step-like lugs 301 each of whichlugs', in succession may, by the ad'- justment of the plate 30, serve,as a support on which a stile rests during the dado cutting as well asduring the performance of the operation of cross cut-ting the ends ofthe pockets, as hereinafter more fully set forth. The stile beingoperated on rests on the alining lugsl301 of the two plates 30 on oneedge, and it is held against lateral movement by a pair of clamps ateach end of the frame side 10. Each pair of clamps consist of a fixedjaw 31, anda movable jaw 32 having set screws 33 for impingement againstthe side of the stile, and attached at its lower end to a longitudinallyextending rock shaft 34 journaled in bearings in the frame side 10. Itwill be seen that the set screws 33 afford means of using the clamps forstiles of different thickness, and when once adjusted for use withstiles of a particular thickness', a clamping and unclamp# ing operationinvolves' merely the rocking of the movable jaws-32 toward or from theircompanion liXed jaws 31, and to facilitate this operation, as well asenable the simultaneous operation of the clamps at both sides of themachine, the two movable jaws 32 at the same end of the machine areprovided with crank arms 35, which are connected by togglel links 36,one of which is providedk with a handle 37, by means of which themovable jaws 32 may be moved to and from the clamping position. The pinor bolt connecting the toggle levers is projected to engage averticalguide-groove 360 in the adjacent framey end.

Extending transversely of they machine l Losa-ive mounted four similaroscillating Yor rocker frames 39, yconsisting each of three arms, theform of the frame being thus T-shape. At the louter end of eachhorizontally extending arm is Aa 4saw blade receiving socket 40, inwhich a cross-cutting saw blade 4l may be clamped by a set screw 42, andat its lower end the vertical arm is forked or bifurcated to straddleand engage an eccentric 43 on the main driving shaft l1, so that by therotation of the eccentric the saw-carrying frame will be oscillated, andthe saw caused to out cross wise of the stile resting upon thesupporting plates 30 and held by the clamping jaws 31-32 herein-beforedescribed in connection with the dado cutters. To feed saidcross-cutting saws 41 during a cutting operation, their carrying andvi,- brating frames are laterally movable, and said frames are arrangedin pairs so that the operation of cross-cutting may proceed from bothsides of a stile, and this, of course, requires that the frames of apair shall move toward each other during a cutting operation and awayfrom each other after such operation has been performed. To effect thedesired lateral movement of the frames automatically, those two framesof a pair whose movements occur simultaneously in the same direction areconnected by a cross bar 44, which has a lateral stud or projection 45that is engaged by a cam 46 on the yokeoperating shaft 16, the camacting to move the saw-carrying arms during a cutting operation, whileto move said arms in the opposite direction, there is provided a coilspring 47 connected to the frames. The

cams 46, of course, are arranged to act re' versely.

It will be seen that by means of a machine embodying our invention, theoperations of cross-cutt-ing the stiles to form the ends of the pockets,and the operation of dadoing or rabbeting the stiles are simultaneouslyperformed upon two stiles. The advantage of our machine, therefore, inrespect to rapidity of doing the work, due both to t-he saving ofcarrying the material from one machine to another, and the simultaneousperformance of a number of operations with one setting of the work, andthe saving of floor space in having one machine perform severaloperations will be apparent.

As showing the possibilities of the machine, it may be added that boringbits, emery wheels, and numerous other tools may be attached to theshaft or mandrel 22 in place of the dado heads, and wabble saws may beplaced on the mandrel for plowing and rabbeting window and door frames,etc.

Vhat we claim isl. The combination of a frame having a support for awindow frame stile, cross cutting saws mounted on said frame contiguousto the stile support at opposite sides thereof movable simultaneouslytoward each other for a cutting operation, a rotating cutting toolmovably mounted on the frame contiguous to the stile support, themovement of said tool being crosswise of a stile on the support, "saidsaws and tool being situated to act upon the same stile, the saws andtool being spaced apart so as to act upon separated portions of thestile, and means for effecting the simultaneous o-perations of said sawsand tools.

2. The combination of a frame having a pair of supports for window framestiles, cross cutting saws for each stile mounted in sets on the framecontiguous to the stile support at opposite sides thereof and movablesimultaneously toward each other for a cutting operation, a rotatingcutting tool for each stile, a carrier for both tools movable in a spacebetween the stiles on their supports, and means for effecting thesimultaneous operations of said saws and tools.

3. rlhe combination of a support for a window frame stile, anoscillatory and laterally movable saw carrying frame for saws adapted tocross cut a stile on the support, a reciprocating yoke, and a rabbetingtool carried by said yoke in position to act upon a stile on saidsupport.

4. The combination of a stile support, a pair of saw-carrying frameshaving each oppositely extending arms adapted to hold saws fo-r actingupon opposite sides of a stile on the support, a pivotal support forsaid frames from which said arms extend, 1

and means for moving the frames laterally upon said support.

5. The combination of a pair of stile supports, a pair of saw-carryingframes having each oppositely extending arms adapted to hold saws foracting upon opposite sides of a stile on the supports, a pivotal supportfor said frames from which said arms extend, means for moving the frameslaterally upon said supports, and connections between certain of saidframes. whereby they may be simultaneously moved laterally.

6. rlhe combination of a frame having a pair of stile supports, eachsupport adapted to support a stile, a pair of saw-carrying frames onopposite sides of each support, a shaft upon which all of said framesare mounted, frame oscillating means comprising a shaft having aneccentric that engages a frame arm, a connection between each in- 1 nerframe of a pair and the outer frame of the other pair, whereby the innerand outer frames of the two pairs are connected for lateral movementsimultaneously and in the same direction, and. means for moving theframes parallel with the axis upon which they rock or oscillate.

7. The combination of a lmain driving shaft., a reciprocating yoke,connections between said yoke and said main shaft, a mandrel carried bysaid yoke, saws and cutter heads on the mandrel, oscillatory andlaterally movable saw-carrying 'frames adapted to hold saws in positionto act on the Work simultaneously with the cutterV heads on the mandrel,and connections between said frames and said main shaft.

8. The combination of a main frame having opposite sides each of Whosetops forms a stile support, two pairs of saw-carrying frames pivotedbetween the ends of said frame sides, the frames of a pair beingsituated on opposite sides of a frame side, means for oscillating saidframes and for moving them laterally parallel with their axis ofoseillatiorn-a yoke carrying a savv mandrel, a support for the yoke inWhich the yoke is vertically slidable, said support being at one end ofthe main frame, and means for imparting vertical movement to said yoke.

In testimony thatvve claim the foregoing We have hereunto set our hands.

FREDERICK H. WEEKS. CHARLES D. WEEKS.

Vitnesses:

GEO. lV. SIRBER, J. KIMPFLIN.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents, Washington, D. C.

